Acetylene-gas-generating lamp.



Patented Aug. -22, |8991, c. KELLY.

AcETvLENE aAs summum LAMP.

(Applicaibn med Apr. 1a, 1899.)

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" y UNITED kSTATES PATENT GFFrcE.

CHARLES KELLY, OF PASSAIC, NEW JERSEY.

AC ETYLE'NEGAS-G yENERATI NG LA'M P.

SPECIFICATION forming part of Letters Patent No. 631,643, dated August 22, 1899.

Appiiaio me@ April 1s, 1899.

To all whom tmc/y concern: y

Beit known that LCHARLES KELLY, of Passaic, in the county of Passaic and State of New Jersey, have invented a new and Irnproved Acetylene-Gas BicycleeLamp, of which v the following is a full, clear, and exact description, ,i

The object of the inventi n is to provide a new and improved acetylene-gas bicyclelamp, which is simple and durable in oonstruetion,very eective and economic in operation, arranged to permit of regulating the generation of gas, and to allow of conveniently lling and cleaning theholder to insure a perfect burningof the gas at all times.

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then. pointed out in the claims.

A practical embodiment of my invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference'indicate corresponding parts 'in all the Iviews.

Figure l is a sectional side elevation of the improvement on the line l 1 in Fig. 2. Fig. 2 is a sectional plan View of the same on the line 2 2 in Fig. land with the screw-cap removed and parts broken out. Fig. 3 is aperspective View of the carbid-holder with part broken out, and Fig. 4v is a similar view of the wick.

The improved bicycle-lamp is provided wit a water-reservoir A, preferably made cylindrical in shape and formed at the rear with lugs B for attaching the lamp to the bicycle on which it is to be used. Into the waterreservoirA extends a generator-casing C, rigidly connected near its upper end with the annular top A' of the reservoir A, so that the latter is closed and the generator-casing C is suspended within the water-reservoir, a space being provided between the sides and bottom of said generator-casing and water-reservoir to allow the Water contained in the waterreservoir to surround the generator-casing, and thereby keep the same cool. The extreme upper end C' of the generator-casing C is screwthreaded and extends to the top A'l 5o to be engaged by the screw-threaded cap D for closing the generator-casing C. A gasket indicated in Fig. 1.

Serial No. 712,880. @To model.)

'E is held in the cap D to engage the top edge of the end C' to prevent leakage of gas from the casing. The top A' is provided at the rear end with a water-filling and air-vent plug F for illing the reservoir A with the desired amount of water, and also for allowing air to pass to the reservoir.

Into the generator-casing C is adapted to be set a closely-tting carbid-holder G, made cup-shaped and adapted to contain carbid H, engaged at its top by the loose strands of a Wick I, held on a rod I', adapted to be passed with a portion of the wick through a pipe C2, attached to the bottom of the generator-casing C, preferably at the middle thereof and extending upward to within a short distance of the top of the generator-casing, as is plainly The lower end of the wiekI thus inserted into the pipe C2 extends into the water contained in the reservoir A, so that this Water can pass by capillary attraction to'and upon the carbid H, contained in the holder G, to generate acetylene gas. The gas thus generated is taken from the upper end of the generator-casing C by a pipe J to a burner K, arranged Within the rear end of a parabolic reflector L, provided at its apex with vertically-disposed flanges L', f1t- 1 ting into a socket C3, attached to the front of the water-reservoir A.

The pipe J extends through the bottoms of the casing C and the waterfreservoir A, and then through the forward portion of the base of the reservoir, to then extend upward through an opening in the reii'ector Lto bring the burner K into the proper position within the parabolic reiiector to insure a forward reflection of the light when the gas is burning at said burner K.

The carbid-holder G is provided with a central tube or pipe G', fitting upon the pipe C2, and at the side of said holder is arranged a tubular guideway G2, fitting loosely around the upper portion of the gas-pipe J, s0 that said holder G is held against rotation, and at the same time the carbid contained in the holder is not liable to pass in any manner into the casing C or into the water-.reservoir A.

In the cap D is mounted to screw a screwrod N, arranged in alinement withl the pipe C2, the lower end of said screw-rod being formed with a cup N', containing a exible IOO head N2, preferably made of rubber, and adapted to engage that portion of the wick extending over the upper edge of the pipc C2, so that when the screw-rod N is screwed downward said head engages the wick and presses the same iirmly in contact with4 the edge ot -the pipe C2 to stop the water iiowing from that portion of the wick contained in the pipe C2 to the loose portion extending in the holder G and in contact with the carbid H. By using the screw-rod N and the head N 2 the user of the lamp is enabled to control the supply of water from the reservoir A to the carbid, thus controlling and regulating the generation of gas and the burning of the gas at the burner K. A stuffing-box O is held on the cap D at the screw-rod N to prevent leakage of gas at this point.

The parabolic reflector L is provided at its front end with a glass L2, fitted against an annular shoulder L3 on the body of the reiiector, and this glass is held in place by lugs Ll engaging the sides of the glass and held on a bail L5, mounted to swing on the reflectorbody, the bail. being adapted to be sprung in place behind a lug L6 at the bottom of the reflector and at the outside thereof, as plainly indicated in Fig. 1. By swinging the bail L5 rearward over the lug LG, as indicated in dotted lines in Fig. l, the lugs L4 swing out of contact with the glass, and the latter can then be conveniently removed for cleaning the reflector and lighting the gas at the burner K. The reliector is also provided with an outlet L7 at the top over the burner and with a hood L8, supported from the outlet. By the arrangement described wind is not liable to blow out the liame at the burner K, and at the same time ventilation is established to insure proper burning of the acetylene gas at the burner K.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. An acetylene-gas lamp, provided with a water-reservoir, a gas-generator easing in said reservoir and rigidly connected therewith by the top of the water-reservoir extending inward to integrally connect with the side of the generator-easing, a screw-cap for closing the upper end of the generator-casing, a reflector supported from the front of the water-reservoir, a gas-pipe carrying a burner inside of the reflector, said pipe extending into said generator-casing to conduct the gas from the casing to the burner, a water-pipe extending from the bottom ot' the generatorcasing and opening at its lower end into the water-reservoir, a wick in said pipe and extending into the water at one end, its other end being upon the carbid held in such generator-casing, and a screw-rod screwing in said cap and in alinement with said pipe, the inner end of the screw-rod having a flexible head for engaging the wick at the upper end of said pipe, to regulate the iiow of water f rom the reservoir to the carbid, substantiall y the generator-casing and opening at its lower end into the water-reservoir, a removable carbid-holder held in said casing and adapted to contain the carbid, the said holder being Vformed with a central pipe fitting upon said Water-pipe, a wick in said water-pipe and extending at one end into the water in the reservoir the other end of the wick being arranged to extend into the carbid-holder, and a pressure device for engaging the wick at the upper end ofthe water-pipe, substantially as shown and described.

3. An acetylene-gas lamp, provided with a water-reservoir, a gas-generator casing in said water-reservoir and with its sides and bottom free from the sides and bottom of said water-reservoir, to allow the water in the reservoir to surround the gas-generator casing and keep the same cool, the upper end of the generator-casing being screw-threaded, and the upper ends of the said generator-easing and said water-reservoir being annularly and rigidly connected with each other by the top of the water-reservoir, a screw-cap screwing on said threaded end of said generator-casing, a gas-outlet 4pipe leading from said generating-casing, a water-pipe extending from the bottom of the generator-casing into the latter, to connect the water-reservoir with the interior of the generator-casing, a wick in said water-pipe and extending into the water in the casing and loosely into the generator-casing, and a carbid-holder removably held in said generator-easing and provided with a central pipe fitting upon said water-pipe, and a tubular guideway at the side of said holder' fitting upon said gas-pipe, substantially as shown and described.

4. An acetylene-gas lamp, provided with a Water-reservoir, a gas-generator casing in said water-reservoir, and with its sides and bottom free from the sides and bottom of said water-reservoir, to allow the water in the reservoir to surround the gas-generator casing and keep the same cool, the upper end of the generator-casing being screw-threaded and the upper end of the said generator-casing and said water-reservoir being annularly and rigidly connected with each other by the top of the water-reservoir, a screw-cap screwing on said threaded end 'of said generator-casing, a gas-outlet pipe leading from said generator-casing, a Water-pipe extended from the bottom of the generator-casing into the latter, to connect the Water-reservoir with the interior of the generator-casing, a wick in said Water-pipe and extending into the water in the casing and loosely into the generator-cas- IOO IIO

ing, a carbid-holder removably held in said pipe extending into the said reector at or generator-casing and provided with a central near the rear end thereof, substantially as pipe iitting upon said Water-pipe, a tubular shown and described.

guideway at the side of said holder and fitting CHARLES KELLY., 5 4loosely upon said gas-pipe, and a parabolic "Witnesses:

reflector supported from said Water-reservoir THEO. G. HOSTER,

in front; thereof, the outer end of said gas- EVERARD BOLTON MARSHALL. 

